Grandstream Networks HT818 - Call Features; Table 6: HT81 X Call Features

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HT81x User Guide
CALL FEATURES
The HT81X support all the traditional and advanced telephony features.
Table 6: HT81X Call Features
Key
Call features
*02
Forcing a Codec (per call) *027110 (PCMU), *027111 (PCMA), *02723 (G723), *02729
(G729), *027201 (iLBC).
*03
Disable LEC (per call) Dial “*03” +” number”. No dial tone is played in the middle.
*16
Enable SRTP
*17
Disable SRTP
*30
Block Caller ID (for all subsequent calls)
*31
Send Caller ID (for all subsequent calls)
*47
Direct IP Calling. Dial “*47” + “IP address”. No dial tone is played in the middle.
*50
Disable Call Waiting (for all subsequent calls)
*51
Disable Call Waiting (for all subsequent calls)
*67
Block Caller ID (per call). Dial “*67” +” number”. No dial tone is played in the middle.
*82
Send Caller ID (per call). Dial “*67” +” number”. No dial tone is played in the middle.
*69
Call Return Service: Dial *69 and the phone will dial the last incoming phone number
received.
*70
Disable Call Waiting (per call). Dial “*70” +” number”. No dial tone is played in the middle.
*71
Enable Call Waiting (per call). Dial “*71” +” number”. No dial tone is played in the middle
*72
Unconditional Call Forward: Dial “*72” and then the forwarding number followed by “#”. Wait
for dial tone and hang up. (dial tone indicates successful forward)
*73
Cancel Unconditional Call Forward. To cancel “Unconditional Call Forward”, dial “*73”, wait
for dial tone, then hang up.
*74
Enable Paging Call: Dial “*74” and then the destination phone number you want to page.
*78
Enable Do Not Disturb (DND): When enabled all incoming calls are rejected.
*79
Disable Do Not Disturb (DND): When disabled, incoming calls are accepted.
*87
Blind Transfer